Pimcore\Controller\Action\Admin\Document::addSettingsToDocument PHP Method

    protected function addSettingsToDocument(Model\Document $document)
    {
        // settings
        if ($this->getParam("settings")) {
            if ($document->isAllowed("settings")) {
                $settings = \Zend_Json::decode($this->getParam("settings"));
                $document->setValues($settings);
            }
        }
    }